Lying Resistance Band Knee Tuck — how to, muscles worked, alternatives

How to do the Lying Resistance Band Knee Tuck

Lie on your back, band anchored low and looped over your feet.
Lift your feet a little, pressing your lower back gently into the floor.
Pull your knees toward your chest, bending your hips and keeping your back flat.
Slowly extend your legs back out, without arching your lower back.

Full technique — 6 steps

Attach a loop band to a low anchor and lie on your back with your feet toward the anchor.
Loop the band over the tops of both feet and place your arms on the floor beside your hips, palms down.
Press your lower back into the floor and lift both straight legs slightly off the floor.
Bend your hips and knees to draw your knees toward your chest until your thighs point up.
Keep your lower back on the floor and your head and arms still.
Extend your legs back out against the band without letting your heels touch or your back arch.

Common mistakes

Arching lower back on extension
Letting heels rest between reps
Swinging legs with momentum
Letting the band pull legs back fast

Form cues

Keep low back down
Reach legs long
Exhale pulling in
Control the band out

Substitutes by equipment

Same muscles, same movement — pick the version you have the gear for.

Where to start and where to go next

Same muscles, same movement. Too hard for now — step down; once it gets easy — step up.

Easier Seated Ab Machine Beginner
This exercise Lying Resistance Band Knee Tuck Beginner
Harder Ab Wheel Half Rollout 40% of bodyweight
Harder Resistance Band Decline Sit-Up Intermediate

Too hard for now? Start with the Seated Ab Machine.

Quick answers

What muscles does the Lying Resistance Band Knee Tuck work?

Primary: Abs 9/10. Also works: Obliques 5/10.

When should I do the Lying Resistance Band Knee Tuck in a workout?

Finisher. Goes last, once the heavy work is done. ≈ 5 min with rest.

How many sets and reps of the Lying Resistance Band Knee Tuck?

Strength: 3 sets of 8–12 reps, rest 1 min 15 s, 2–3 reps in reserve. Muscle growth: 3–4 sets of 12–15 reps, rest 1 min, 2–3 reps in reserve. Endurance: 2–3 sets of 20–25 reps, rest 45 s, 3–4 reps in reserve.

What can I do instead of the Lying Resistance Band Knee Tuck?

No equipment: Ab Wheel Straight Arm Crunch, Alternating Tuck-Up. Dumbbells: Dumbbell Decline Sit-Up, Dumbbell Straight Arm Crunch. Medicine ball: Medicine Ball Toe Touch Crunch, Medicine Ball Straight Arm Crunch. Suspension trainer: Suspension Trainer Hanging Knee Raise, Suspension Trainer Hanging Leg Raise.